Date Added: Mar 2012
In this paper, the authors propose a framework to reduce the aggregate power consumption of the Internet using a collaborative approach between Autonomous Systems (AS). They identify the low-power paths between the AS and then use Traffic Engineering techniques to route packets along the paths. Such low-power paths can be identified by using the available PoWeR-to-bandwidth (PWR) ratio as an additional constraint in the Constrained Shortest Path First algorithm. For re-routing the data traffic through these low-power paths, the inter-AS Traffic Engineered Label Switched Path that spans multiple AS can be used.